We have specifically developed the toolkit with small developers in mind.  We wanted to develop the kit so that an android developer didn't need to understand anything about bitcoin in order to accept it, and that's what the library will do.  In fact, you don't even need to ever hold bitcoin, or be exposed to it at all, if that's your choice.  

We'd love to hear how it has been implemented, so we can improve on the feature-set, so please let us know how you've gone about it.  But that's totally up to you.